Question
If in the number '5736358324', 2 is added to all the odd
digits and 2 is subtracted from all the even digits, then what is the sum of all the prime numbered digits in the new number thus formed?ÂSolution
5Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 8Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â 4 7Â Â Â Â Â Â Â Â Â 9Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â 5Â Â Â Â Â Â Â Â Â 0Â Â Â Â Â Â Â Â Â 2 Sum = (7 + 5 + 5 + 7 + 5 +2) = 31.
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